TY - SER AU - Sá,S.G.de AU - Pinheiro Júnior,J.W. AU - Vilela,S.M.de O. AU - Moraes,E.P.B.X. AU - Albuquerque,P.P.F. AU - Ferreira,D.R.A. AU - Mota,R.A. TI - Occurrence and risk factors assessment associated with Mycoplasma gallisepticum (MG)infection in chickens in the semiarid region of Permanbuco, Brazil KW - AVE DOMÉSTICA KW - GALINHA KW - MICOPLASMOSE KW - DOENÇA ANIMAL KW - AVICULTURA ER -